Brake-shoe.



"No. 817,894. PATENTED APR. 17, 1906. '0. W. ARMBRUST. BRAKE SHOE.

APPLICATION FILED NOV. 13, 1905.

To (ZZZ whom ii" 7am concern- Be it known that 1, CHARLES BRUST, a citizen of the United 53 ates, reeii ing at Chicago, in the county of ij'ooe on 5 State of Illinois, have invented in me and useful improvememe Ei'ekefonoeo,

which thefoilowing is a, specification.

This invention reiatee "no bTfik-Siii0QS of that type in which the shoe 'oroper is 0' iabiy or detechabiy ooiineoteo it sup mg or carrying member, comm-Key as the head.

In an appiiea'tion executed by 1' 6th day of Nov-ember, 1905, end 15 Patent Office on the 9th day 1985, Serial No. 2 1. claimed a braketerized chiefly b syacing member :0 siioe proper an'i substanbmliy H be WOXII up W1 head even under My presen 2' the improved 10m jest-matte? oi the consist, essentially, i1 ti means for sepembi so the head, such meals, e or members having; .JL

gogement with the the back of shoe, Projecting portions sip u my that oonneote the shoe to i apertureci portion in ta of integral operbored or in the EppiIGaUU'M efore'wo;

ing means in the orerferi'ed form herein shown serve the edditionei .ff' 4,0 in case of breakage oi the shoe part-s together and rem to the heed so that the service un i ing to the 12m to Wrecks, and eieo o1 lugs agaizisp failing to shoe proper hes been "I My invention in mated in the aeoem in- Figure 1 is e-e'ai eiev plete shoe and head em oo meme. Fi 2 is an edg the meme looking fizowem.

them over the spacing and filling lugs S) and 11 "from each end of the shoe, whereby said strips 15 are connected to the shoe through the spacing and filling lugs 9 and ll at its end and intermediate portions. The head is then applied with i. outer forked ends strad- (fling the guides 17, and the key is inserted, uniting the parts together. The tongues l t in the end spacing and filling lugs 9 are rn'ef 1o erably made slightly tapered or inclined, so

as to be narrower at their outer than their inner ends, and the elenehers l 5 are correspondingly tapered or inclined to it the tongues. This construction in case the shoe '1 5 breaks transversely at any point insures the retention of the broken parts of the shoe in service until worn out, thus preventing dan r of Wrecks from parts falling to the tree K, and also insures the retention of the 2.0 filling and spacing lugs, even after the body of the shoe has been worn out, thus preventing injury to the head, even though the shoe wear unevenly. I

From the foregoing it will be seen that the 215 members do not have the function of steel backs or brake-shoe reinforcements, nor do they engage the shoe-body proper at all, but rather serve as holding and attaching means, which also prevent the falling away of the parts of the shoe in case of breakage or of the filling and spacing lugs when the shoe is worn out. The various parts are of co!nparativcly simple construction, economical to manufacture, and easily assembled.

The shoe-body is shown as transversely weakened by scoring at its loi'igitndinal center, as ind' atcd at 25, in order to cause acci- 'dental breakage of the shoe. to occur at a prct fetermincd point where such breakage is imma- 40 terial, thus lessening the likelihood of breakage at material points. This feature, however, forms in part the subjcct-matter of my companion application above referred to and is not claimed herein.

it is evident that variations and modifications in respcct to the details of construction from the invention as described and shown may be made by those skilled in the art without departing from the principle of thc invcntion .or sacrificing any of the advantages thereof". Hence the invention is not limited to the part icularembodiment thereof selected for purposes of illustration and description.

1 claiml. A brake-shoe havingfilling and spacing lugs adapted to se )aratc the same from the head, and provided with attaching means for iconncction to the head scparably and interlockingly engaging said filling and spacing "6o lugs, suifstantially as described.

if 2. A brake-shoe having filling and spacing tugs adapted to separate the same from the head, and provided with attaching means for tolmcqtion to the head having separable tongue-and-groove engagement with said filling and spacing lugs, substantially as described.

3. A brake-shoe having filling and spacing lugs on its back, said lugs having tongues formed on the sides thereof, in combination with attaching members slidably engaging said tongues and provided with apcrtured lugs for engagement with the key whereb y the shoe is connected to the head, substantially as described.

i. A brake-shoe having end and intermediate filling and spacing lugs on its back, said lugs having tongues formed on the sides thereof, in combination with attaching members having lateral clenehers slidably engaging said tongues and provided at their outer ends with apertured lugs for engagement with the key whereby the shoe is connected-- to the head, substantially as described. i

5. The combination with a head having apertured internal attaching-lugs, of a brake shoe having on its back integral end and inter mediate filling and spacing lugs, said lugs having tongues formed on the sides thereof, attaching-st rips having lateral clenchcrs slid- 9o ably engaging the said tongues and provided at their outer ends with apcrtured lugs, and a key passing through the latter and the internal attaching-lugs of the head, substan-- tially as described. )5

(S. The combination with a head having aperturcd internal attaching-lugs, said lugs having tongues formed on the sides thereof, of a brake-shoe having on its back integral end and intermediate filling and spacing lugs and intermediate aperturcd attzu-hing-lugs, metal strips having lateral clcnchcrs slidably engaging said tongues and provided at their,- oulcl' ends with apcrturcd lugs, and a key passing through the lat tcr and the integral i 5 attachingdugs of the head and shoe, substantially as described.

7. A brake-shoe having on its back mcahs for spacing the same from the head, in com bination with a removable connecting means interlocking y engaging said spacing meansamfscparatcd from the back of the shoe proper, substantially as described.

fl. A brake-shoe having on its back means for spacing the. same from the head, in com- 5 bination with a slidable ctinncction-piece engaging said spacing means and separated from the back of the shoe proper suflicicntly to insure the wearing away of the entire body of the shoe even under uneven wear of the latter without danger of wearing the said ctinncction-piccc or the head, substantially as described.

CHARLES W. ARt'lBRUSl.

\Vitnesscs:

SA .n u in. N. Porn), FREIHCIUCK (1. (loonwm. 

